Extraordinary rock formations in open Peruvian fields.

One of the world's tallest waterfalls wasn't revealed to the world at large until 2006.

Huge stone depressions which may have acted as an Incan agricultural experiment.

The Uros people live on floating reed islands in lake Titicaca.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

A set of ancient drawings in the desert of Peru that are so massive, many of them can only be fully seen from the sky.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

A remarkable geological formation resembling a forest made of stone.

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The oldest café in Montevideo preserves its history as the city's bohemian hub.

The design of the Palacio Salvo has been described as "a lighthouse on top of a building."

Massive rock sculptures formed during the time of the dinosaurs still stand undisturbed.

A tower devoted to — and modeled after — the Divine Comedy.

Xul Solar was an artist of alternate worlds, inventor of languages, and dreamer of utopias.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

This stunning mass of ice spans 121 square miles and is still growing.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

New Zealand's west coast is one of the best places in the world to view these large seabirds.

One man's dream has turned into this naturally growing chapel made of almost nothing but trees.